rs375784883

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_000069.3(CACNA1S):​c.2657+9C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000152 in 1,605,562 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

CACNA1S
NM_000069.3 intron

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -1.59

Publications

0 publications found
Variant links:
Genes affected
CACNA1S (HGNC:1397): (calcium voltage-gated channel subunit alpha1 S) This gene encodes one of the five subunits of the slowly inactivating L-type voltage-dependent calcium channel in skeletal muscle cells. Mutations in this gene have been associated with hypokalemic periodic paralysis, thyrotoxic periodic paralysis and malignant hyperthermia susceptibility. [provided by RefSeq, Jul 2008]
CACNA1S Gene-Disease associations (from GenCC):
  • congenital myopathy 18
    Inheritance: AD, AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • hypokalemic periodic paralysis, type 1
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • malignant hyperthermia, susceptibility to, 5
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • congenital myopathy
    Inheritance: SD, AR, AD Classification: STRONG Submitted by: Illumina, Genomics England PanelApp
  • hypokalemic periodic paralysis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 1-201066878-G-A is Benign according to our data. Variant chr1-201066878-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 390755.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000142 (207/1453256) while in subpopulation MID AF = 0.000872 (5/5732). AF 95% confidence interval is 0.000343. There are 0 homozygotes in GnomAdExome4. There are 114 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000069.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1S
NM_000069.3
MANE Select
c.2657+9C>T
intron
N/ANP_000060.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1S
ENST00000362061.4
TSL:1 MANE Select
c.2657+9C>T
intron
N/AENSP00000355192.3
CACNA1S
ENST00000367338.7
TSL:5
c.2657+9C>T
intron
N/AENSP00000356307.3
CACNA1S
ENST00000681874.1
c.2597+9C>T
intron
N/AENSP00000505162.1

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000314
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000309
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000256
AC:
64
AN:
250392
AF XY:
0.000229
show subpopulations
Gnomad AFR exome
AF:
0.000371
Gnomad AMR exome
AF:
0.000290
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000380
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000142
AC:
207
AN:
1453256
Hom.:
0
Cov.:
30
AF XY:
0.000158
AC XY:
114
AN XY:
723504
show subpopulations
African (AFR)
AF:
0.000420
AC:
14
AN:
33322
American (AMR)
AF:
0.000291
AC:
13
AN:
44702
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26082
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39648
South Asian (SAS)
AF:
0.0000581
AC:
5
AN:
85988
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53374
Middle Eastern (MID)
AF:
0.000872
AC:
5
AN:
5732
European-Non Finnish (NFE)
AF:
0.000147
AC:
162
AN:
1104258
Other (OTH)
AF:
0.000116
AC:
7
AN:
60150
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
13
26
38
51
64
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.000313
AC:
13
AN:
41576
American (AMR)
AF:
0.000196
AC:
3
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000309
AC:
21
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000444
Hom.:
0
Bravo
AF:
0.000321
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000297

ClinVar

ClinVar submissions as Germline
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
Hypokalemic periodic paralysis, type 1 (2)
-
-
1
CACNA1S-related disorder (1)
-
-
1
Congenital myopathy 18 (1)
-
-
1
Malignant hyperthermia, susceptibility to, 5 (1)
-
-
1
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 (1)
-
-
1
not specified (1)
-
-
1
Thyrotoxic periodic paralysis, susceptibility to, 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.056
DANN
Benign
0.52
PhyloP100
-1.6
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs375784883; hg19: chr1-201036006; API